Supplemental Comprehensive Income Disclosures (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			$ (2,386)	$ (4,499)
Other comprehensive income (loss) before reclassification adjustment	$ 2,471	$ (2,479)	9,017	4,010
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	233	(343)	1,361	434
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax			10,378	4,444
Amounts reclassified from accumulated other comprehensive income (loss)			(45)	(85)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax	17	7	27	4
Total other comprehensive (loss) income	2,669	(2,842)	10,333	4,359
Accumulated Other Comprehensive Income (Loss), Ending Balance	7,947	(140)	7,947	(140)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			(2,956)	(4,875)
Other comprehensive income (loss) before reclassification adjustment			9,017	4,010
Amounts reclassified from accumulated other comprehensive income (loss)			(18)	(81)
Total other comprehensive (loss) income			8,999	3,929
Accumulated Other Comprehensive Income (Loss), Ending Balance	6,043	(946)	6,043	(946)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			10	76
Other comprehensive income (loss) before reclassification adjustment			0	0
Amounts reclassified from accumulated other comprehensive income (loss)			0	0
Total other comprehensive (loss) income			0	0
Accumulated Other Comprehensive Income (Loss), Ending Balance	10	76	10	76
Derivative [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Beginning Balance			560	300
Total other comprehensive (loss) income			1,334	430
Accumulated Other Comprehensive Income (Loss), Ending Balance	$ 1,894	$ 730	1,894	730
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total other comprehensive (loss) income			$ 10,333	$ 4,359